DSPIC33EP32GP502T-I/SS - 16-bit 70 MIPS DSC, 32KB Flash | Microchip
MPN: DSPIC33EP32GP502T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.49 | $2.49 |
| 10 | $2.24 | $22.40 |
| 100 | $1.95 | $195.00 |
| 500 | $1.8 | $900.00 |
| 1,000 | $1.65 | $1,650.00 |
DSPIC33EP32GP502T-I/SS Overview
A digital signal controller combines the deterministic interrupt architecture and peripheral set of a microcontroller with the multiply-accumulate (MAC/DSP) engine of a digital signal processor. Within the power-management hierarchy, the dsPIC33E family sits above basic MCUs for math-intensive control loops, making it a mainstay of digital power conversion, motor control and precision sensing systems.
Key features include the high-performance 16-bit dsPIC33E CPU core with DSP instruction support, onboard operational amplifiers and comparators, a Charge Time Measurement Unit (CTMU), CAN 2.0B communication, and a Peripheral Trigger Generator (PTG) for autonomous peripheral sequencing. These make the device well suited for closed-loop control where sampling, computation and PWM updates must occur within a single loop period.
Architecturally, the device pairs an efficient pipelined C compiler-friendly core with rich analog peripherals, reducing external component count in compact power and sensing designs. In-circuit serial programming (ICSP) via the standard 5-pin interface supports field updates with Microchip tools such as MPLAB X IDE and ICD/PICkit programmers.
Typical applications include digital power supplies (PFC, LLC), brushless DC and PMSM motor drives, battery chargers, power-factor-correction stages, and sensor signal conditioning in industrial and consumer equipment.
Design consideration: the SSOP-28 package has a 0.65 mm pin pitch and exposed leads that require careful solder-paste stencil design; all VDD/VSS pin pairs must be decoupled with 100 nF ceramic capacitors placed as close to the device as possible for noise-free ADC operation.
This page synthesizes distributor pricing, drop-in alternatives within the dsPIC33E family, and practical design notes not found in the manufacturer datasheet, with pricing data referenced as of 2026-09-24.
Drop-in alternatives for DSPIC33EP32GP502T-I/SS — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DSPIC33EP32GP502T-I/SS (same form factor and footprint) — differing in Operating Temperature, Package, Core Architecture, RAM, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32GP502-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP16GS202T-E/SS
✅ Drop-In✓ In Stock
$3.05 / Unit
View Datasheet →DSPIC33EP16GS202-I/SS
✅ Drop-In✓ In Stock
$2.79 / Unit
View Datasheet →DSPIC33EP128MC502-I/SS
✅ Drop-In✓ In Stock
$2.55 / Unit
View Datasheet →DSPIC33EP256MC202T-I/SS
✅ Drop-In✓ In Stock
$3.38 / Unit
View Datasheet →DSPIC33EP32GP502T-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E DSC |
| Max CPU Speed | 70 MIPS |
| Core Frequency | 60 MHz |
| Flash Memory | 32 KB (10.7K x 24) |
| RAM | 4 KB |
| Package | 28-SSOP |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (industrial, I suffix) |
| Supply Voltage | 3.0 V to 3.6 V |
| On-chip Op Amps | Yes |
| Comparators | Yes |
| CAN Interface | CAN 2.0B |
| CTMU | Yes (Charge Time Measurement Unit) |
| Peripheral Trigger Generator | Yes (PTG) |
| Packaging | Tape & Reel (TR), T suffix |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active |
| Manufacturer Lead Time | 35 weeks |
DSPIC33EP32GP502T-I/SS 28-ssop Pin Configuration Guide
Pin configuration for DSPIC33EP32GP502T-I/SS (28-ssop package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC33EP32GP502T-I/SS.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP32GP502T-I/SS is suitable for 6 applications: Digital Power Supply Control, Brushless DC and PMSM Motor Drives, Battery Chargers and Power Management, Industrial Sensing and Signal Conditioning, Consumer Appliance Control, Automotive-Adjacent and Telematics Nodes.
Digital Power Supply Control
The DSPIC33EP32GP502T-I/SS fits digital power conversion because its 70 MIPS core closes voltage and current loops within the switching periods of 100 kHz to 500 kHz converters, while the Peripheral Trigger Generator sequences ADC sampling and PWM updates with minimal CPU latency. Typical uses include LLC resonant converters, PFC front ends and DC-DC modules, where onboard comparators provide cycle-by-cycle overcurrent protection independent of software. Placed as the single control IC between the feedback divider and the gate drivers, it replaces analog compensators with firmware-defined II/PID loops, enabling adaptive mode switching and digital telemetry over CAN 2.0B. The trade-off versus a dedicated digital power controller is firmware development effort; the benefit is full customization of protection thresholds and startup profiles.
Recommended
Brushless DC and PMSM Motor Drives
Sensorless BLDC and PMSM drives demand fast, deterministic math for field-oriented control, and the DSPIC33EP32GP502T-I/SS delivers 70 MIPS with single-cycle MAC/DSP instructions that compute Clarke/Park transforms and PI current loops inside one PWM period. Its 28-pin SSOP footprint suits compact fan, pump and power-tool inverters where board area is limited, and onboard op amps condition shunt current feedback without external amplifiers. Configurable complementary PWM outputs with dead-time insertion drive three-phase gate bridges directly, while comparator-based fault inputs enforce hardware overcurrent shutdown within microseconds. Designers should budget the 32 KB flash carefully for FOC plus communication stacks; if the application grows, the same-footprint 128 KB DSPIC33EP128MC502-I/SS provides an upgrade path without PCB changes.
Recommended
Battery Chargers and Power Management
Multi-chemistry battery charging requires accurate voltage/current telemetry, staged charge control and safety supervision, all natively handled by the DSPIC33EP32GP502T-I/SS. Its high-speed 70 MIPS core executes coulomb counting and charge-phase state machines, while the 12-bit ADC samples battery voltage and shunt current synchronously with the buck PWM via the Peripheral Trigger Generator. The CTMU supports precise time-domain measurements useful for cell impedance diagnostics, and onboard comparators flag overvoltage and reverse-polarity faults in hardware. For smart chargers in e-mobility and industrial tools, the CAN 2.0B module links the charger to vehicle or fleet controllers. A 3.3 V supply rail, common in charger designs, powers the DSC directly, and the industrial -40C to +85C rating covers enclosed charging stations.
Recommended
Industrial Sensing and Signal Conditioning
The DSPIC33EP32GP502T-I/SS serves as a compact sensing node because its onboard op amps and high-speed ADC can amplify and digitize sensor signals directly, cutting external analog component count on space-constrained industrial boards. The 70 MIPS DSP engine applies digital filtering (IIR/FIR) to raw ADC streams for noise rejection, and the CTMU provides precision charge-based measurement for capacitive level, current and touch sensing applications. The industrial -40C to +85C temperature rating matches factory-floor environments, while the CAN 2.0B interface integrates the node into fieldbus networks. Sensor examples include pressure bridges, RTDs and hall-effect current sensors. Designers should place a clean analog reference and short RC filters ahead of ADC inputs to exploit the DSC full signal-chain accuracy.
Recommended
Consumer Appliance Control
Appliances such as induction cooktops, air conditioners, blenders and vacuum cleaners use the DSPIC33EP32GP502T-I/SS as the single supervisory and power-control DSC. Its 70 MIPS core handles user interface scanning, communications and motor or inverter control simultaneously, and the 32 KB flash accommodates full application firmware including fault logging. The SSOP-28 package with 0.65 mm pitch enables compact two-layer control boards that pass EMC testing thanks to short gate-drive routing. Configurable PWM and ADC triggering let one device manage fan speed, heater power and sensor polling under a cooperative firmware scheduler. RoHS3 compliance supports global appliance certification requirements. For cost-reduced derivative models, the 16 KB flash DSPIC33EP16GS202-I/SS in the identical footprint simplifies dual-BOM strategies.
Recommended
Automotive-Adjacent and Telematics Nodes
While the -I grade is not AEC-Q100 qualified for core automotive ECUs, the DSPIC33EP32GP502T-I/SS is widely used in adjacent applications: CAN-gatewayed accessory controllers, battery monitors in leisure vehicles, telematics dongles and industrial fleets. The integrated CAN 2.0B module with hardware message buffers exchanges frames with vehicle networks without external CAN controllers, and the 70 MIPS core filters and aggregates sensor data before transmission. Its 3.3 V operation matches typical telematics rail architectures, and a watchdog plus brown-out reset maintain safe operation under crank-induced supply dips. For designs entering full automotive production, Microchip offers extended-temperature dsPIC33EP variants in the same footprint to simplify qualification transitions.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32GP502T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32GP502-I/SS | DSPIC33EP16GS202T-E/SS | DSPIC33EP128MC502-I/SS | DSPIC33EP256MC202T-I/SS |
|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 16 KB | 128 KB | 256 KB |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Temperature Range | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) |
| Peripheral Focus | General purpose (op amps, PTG, CAN) | General purpose (identical) | Smart energy/sensing analog | Motor control (MCPWM) | Motor control (MCPWM) |
| Packaging Format | Tape & Reel (T) | Tube/Tray | Tape & Reel (T) | Tube/Tray | Tape & Reel (T) |
Key Differentiators
- General purpose peripheral mix with onboard op amps and PTG (vs DSPIC33EP128MC502-I/SS)
- Double the flash of the cost-optimized sibling (vs DSPIC33EP16GS202T-E/SS)
- Standard industrial temperature grade for broad availability (vs DSPIC33EP16GS202T-E/SS)
Design Notes
The DSPIC33EP32GP502T-I/SS runs from a 3.0 V to 3.6 V rail with an internal core regulator requiring an external VCAP capacitor per datasheet recommendations. Decouple every VDD/VSS pair with a 100 nF X7R ceramic placed within 2 mm of the pins, plus 4.7 uF to 10 uF bulk near the device. In motor-drive or power-conversion layouts, keep the DSC supply domain separate from gate-driver supply switching loops to prevent PWM-induced supply dips that reset the controller.
The SSOP-28 lead pitch is 0.65 mm; specify a solder-paste stencil slightly reduced (about 90% aperture) to avoid bridging in reflow. Place the ICSP header (MCLR, VDD, GND, PGD, PGC) in a fixed board corner for programmer access after assembly. Route analog ADC inputs away from PWM traces, and use a solid ground plane with star connections for analog and digital returns to preserve ADC accuracy.
Confirm the exact peripheral set in the DSPIC33EP32GP502 datasheet before substituting family members - GS-series and MC-series parts in the same 28-SSOP footprint map different peripherals to shared pins, so code using Peripheral Pin Select must be re-validated. Also note the T suffix part ships on Tape & Reel with moisture sensitivity; bake per JEDEC-style MSL guidance on the packing label if floor life is exceeded.
Compliance Information
ROHS3 Compliant per Microchip USA listing. I-suffix industrial temperature part; not AEC-Q100 qualified. REACH/halogen status not stated in provided data.
